What is the health advantage of building cardio endurance?
A. Cardio endurance-building (aerobic) exercises improve the functions of the heart, lungs, and blood vessels. A healthy heart is able to pump blood to nourish billions of body cells. Lungs are where the gases of cell metabolism are exchanged for oxygen. Elastic blood vessels that are free of obstructions allow life-giving blood to flow. A healthy level of cardio endurance reduces risk of cardiovascular diseases.